<template>
    <el-container class="home-container">
        <!--头部区域-->
        <el-header>
            <div>
                <img src="../assets/heima.png" alt="">
                <span>测试系统</span>
            </div>
            <el-button type="info" @click="logout">退出</el-button>
        </el-header>
    <!--主体区域-->
        <el-container>
            <!--侧边栏-->
            <el-aside :width="isClollapse ? '64px' : '200px'">
                <div class="toggle-button" @click="toggleCollapse">|||</div>
                <!--侧边栏菜单-->
                <!--开启调转模式
                     router-->
                <el-menu                    
                    background-color="#333744"
                    text-color="#fff"
                    active-text-color="#409BFF"
                    :unique-opened="false"  :collapse="isClollapse" 
                    :router="true" :default-active="activePath1"
                    :collapse-transition="false">
                    <!--1级菜单-->
                        <el-submenu :index="item.id + ''" v-for="item in menulist" :key="item.id">
                            <!--一级菜单模板区-->
                            <template slot="title">
                                <!--图标-->
                            <i :class="iconsObj[item.id]"></i>
                            <!--文本-->
                            <span>{{item.authName}}</span>
                            </template>

                            <!--二级菜单-->
                            <el-menu-item :index="'/'+subItem.path" v-for="subItem in item.children" :key="subItem.id"
                                @click="saveNavState('/'+subItem.path)">
                                <template slot="title">
                                    <!--图标-->
                                    <i class="el-icon-menu"></i>
                                    <span>{{subItem.authName}}</span>
                                </template>
                            </el-menu-item>
                        
                        </el-submenu>                    
                    </el-menu>
            </el-aside>
            <!--工作区-->
            <el-main>
                <!--路由占位符-->
                <router-view></router-view>
            </el-main>
        </el-container>
    </el-container>

</template>

<script>
export default {
    data(){
        return{
            menulist:[],
            iconsObj:{
                '125':'iconfont icon-user',
                '103':'iconfont icon-tijikongjian',
                '101':'iconfont icon-shangpin',
                '102':'iconfont icon-danju',
                '145':'iconfont icon-baobiao'
            },
            //是否折叠
            isClollapse:false,
            //被激活的链接地址
            activePath1:''
        }
    },
    created(){
        this.getMenuList()
        this.activePath1 = window.sessionStorage.getItem('activePath')
    },
    methods:{
        //退出
        logout(){
            window.sessionStorage.clear();//清除token
            this.$router.push('/login');//跳转登录页
        },
        //获取所有的菜单
        async getMenuList(){
            const {data: res} = await this.$http.get('menus');
            if(res.meta.status !==200) return this.$message.error(res.meta.msg);
            this.menulist=res.data;
            console.log(res);
        },
        //切换菜单展开与折叠
        toggleCollapse(){
            this.isClollapse =!this.isClollapse;
        },
        //保存链接的激活状态
        saveNavState(activePath){
            window.sessionStorage.setItem('activePath',activePath);
            this.activePath1=activePath;
        }

    }
}
</script>

<style lang="less" scopen>
.home-container{
    height: 100%;
}

.el-header {
    background-color: #373D41;
    display:flex; 
    justify-content: space-between ;
    padding-left: 0;
    align-items: center;
    color:#fff;
    font-size: 20px;
    >div{
        display:flex;
        align-items: center;
        span {
            margin-left: 15px;
        }
    }
}
.el-aside {
    background-color: #333744;
    .el-menu{
        border-right: none;;
    }
}

.el-main{
 background-color: #EAEDF1;
}
.iconfont{
    margin-right: 10px;
}
.toggle-button{
    background-color: #4A5064;
    font-size: 10px;
    line-height: 24px;
    color:#fff;
    text-align: center;
    letter-spacing: 0.2em;
    cursor: pointer;
}
</style>